Locustella pleskei

Styan's grasshopper warbler (Helopsaltes pleskei), also known as Pleske's grasshopper warbler and Taczanowski's warbler, is a species of Old World warbler in the family Locustellidae. It is found in China, Hong Kong, Japan, North Korea, South Korea, and Russia. Its natural habitats are temperate shrubland, subtropical or tropical dry shrubland, and swamps. It is threatened by habitat loss.